Home / 12,121.26-18,181.84-3,356.14

Finding the Fourth Proportional to 12,121.26, 18,181.84 and 3,356.14

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Solution

The fourth proportional to 12,121.26, 18,181.84 and 3,356.14 is: 5,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121.26 : 18,181.84 = 3,356.14 : x
  2. Step 2: Convert to fraction form
    12,121.26/18,181.84 = 3,356.14/x
  3. Step 3: Cross multiply
    12,121.26x = 18,181.84 × 3,356.14
  4. Step 4: Simplify right side
    12,121.26x = 61,020,800.50
  5. Step 5: Solve for x
    x = 61,020,800.50/12,121.26
  6. Step 6: Final answer
    x = 5,034.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.